﻿using System.Windows;
using System.Windows.Controls;

namespace ScreenToGif.Controls
{
    public class ExtendedCheckBox : CheckBox
    {
        #region Dependency Properties

        public static readonly DependencyProperty TextProperty = DependencyProperty.Register("Text", typeof(string),
            typeof(ExtendedCheckBox), new PropertyMetadata());

        public static readonly DependencyProperty TextWrappingProperty = DependencyProperty.Register("TextWrapping", typeof(TextWrapping),
            typeof(ExtendedCheckBox), new PropertyMetadata(TextWrapping.Wrap));

        public static readonly DependencyProperty UncheckOnDisableProperty = DependencyProperty.Register("UncheckOnDisable", typeof(bool),
            typeof(ExtendedCheckBox), new PropertyMetadata(false));

        #endregion

        #region Properties

        public string Text
        {
            get => (string)GetValue(TextProperty);
            set => SetValue(TextProperty, value);
        }

        public TextWrapping TextWrapping
        {
            get => (TextWrapping)GetValue(TextWrappingProperty);
            set => SetValue(TextWrappingProperty, value);
        }

        public bool UncheckOnDisable
        {
            get => (bool)GetValue(UncheckOnDisableProperty);
            set => SetValue(UncheckOnDisableProperty, value);
        }

        #endregion

        #region Custom Events

        public static readonly RoutedEvent CheckedChangedEvent = EventManager.RegisterRoutedEvent("CheckedChanged", RoutingStrategy.Bubble,
            typeof(RoutedEventHandler), typeof(ExtendedCheckBox));

        public event RoutedEventHandler CheckedChanged
        {
            add => AddHandler(CheckedChangedEvent, value);
            remove => RemoveHandler(CheckedChangedEvent, value);
        }

        public void RaiseCheckedChangedEvent()
        {
            if (CheckedChangedEvent == null) return;

            var newEventArgs = new RoutedEventArgs(CheckedChangedEvent);
            RaiseEvent(newEventArgs);
        }

        #endregion

        static ExtendedCheckBox()
        {
            DefaultStyleKeyProperty.OverrideMetadata(typeof(ExtendedCheckBox), new FrameworkPropertyMetadata(typeof(ExtendedCheckBox)));
        }

        public override void OnApplyTemplate()
        {
            base.OnApplyTemplate();

            Checked += (sender, args) => RaiseCheckedChangedEvent();
            Unchecked += (sender, args) => RaiseCheckedChangedEvent();

            if (UncheckOnDisable)
                IsEnabledChanged += (sender, args) =>
                {
                    if (!IsEnabled)
                        IsChecked = false;
                };
        }
    }
}